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View Full Version : PAL slow-motion 50p to 25p



hurdy-gurdy-man
06-11-2009, 09:40 AM
After finally updating Premiere Pro for AVCHD compatibility I tried to run my first slow-motion test with the GH1.

But I seem to have problems with the workflow yet. Is it the same as converting NTSC 60p footage to 24p, just at 50/25?

Here's what I did:
Shot some test footage in 720p AVCHD mode at 1/100 shutter. Opened a new 25p project in Premiere. Imported the clips and put them in the timeline. No slow-motion. Do I have to set the speed to 50%? Tried it, but apparently it's no real slow-motion then of course. Am I just missing something or doesn't it work properly?

Thanks for any replies!

EDIT: Got it. For anyone also working with Premiere: Right-click the clip, check properties. It should show 50 fps. Right-click again, select "Interpret footage" (could be named differently as I'm translating from my German Premiere). In the pop-up window, select "Different framerate" and type in 25 fps. Then put the clip in the timeline and it should play in slow-motion. Clip properties still show 50 fps though. But it works, so this should be the deal.

editman
06-17-2009, 01:51 AM
Same works in AE. Interpret the footage as 25 instead of the native 50fps.

Noel Evans
06-29-2009, 06:15 PM
Im a FCP person, but its nothing like 60 to 24. You shouldnt have to interpret? Just drop the 50p straight on 25p timeline reduce speed to 50% - not sure how premiere works anymore, but make sure it does not have any frame blending turned on.

JB_frenchy
07-01-2009, 05:21 AM
the philip bloom method works very well on mac http://philipbloom.co.uk/tutorials/how-to-turn-50p-and-60p-into-slow-motion-with-cinema-tools/
but when i simply drop a 50 fps in 25 timeline in FCP and change the speed of the clip to 50%, it doesn't seem to work, it's not a smooth slow motion, it seems that 1 frame is doubled every 2 frames,
does someone know the way of doing a correct slow motion insideFCP only?
thanks

tonydvcoste
07-01-2009, 09:12 AM
in vegas i just do the math, if it's a 10 second clip shot at 60 i pull it out to 25 seconds on the time line, and i might be doing it wrong but it looks smooth to me, the only difference i'd think would be the math is easier in the pal version!